. >> reporter: a worst case scenario, an eroding tax base. the government demanding more from lower income people. and the future of this baby, a potential revolt. >> this boat won't float if that continues. >> reporter: miriam hernandez, abc news, eyewitness news. >> that's pretty fascinating. you wouldn't think that. i mean, a lot of countries have problems with not having enough babies, but you wouldn't think the state of california. >> in 2011, the u.s. had 63 births per 1,000 women. compare that to the baby boom generation, 122 births of women of child-bearing ages, 15 to 44. >> are you going to do your part? you've got two. >> i might. i've always wanted four. >> you better get going. >> my husband counts so i have three. >>> it's one of the most heroic jobs in the world, walking into fire to do battle and save lives. >> up next, we'll see what a firefighter sees on the job and hear what he goes through in the middle of an infer know. it's all from his perspective and it's all coming up on "world news now." ♪ goodness gracious, great